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KA431LZ from FAIRCHIL,Fairchild Semiconductor

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KA431LZ

Manufacturer: FAIRCHIL

Programmable Shunt Regulator

Partnumber Manufacturer Quantity Availability
KA431LZ FAIRCHIL 200 In Stock

Description and Introduction

Programmable Shunt Regulator The KA431LZ is a precision programmable voltage reference manufactured by Fairchild Semiconductor (now part of ON Semiconductor).  

### **Specifications:**  
- **Type:** Adjustable Shunt Regulator  
- **Reference Voltage:** 2.5V (typical)  
- **Voltage Range:** 2.5V to 36V  
- **Output Current:** 1mA to 100mA  
- **Tolerance:** ±0.5%, ±1%, ±2% (depending on variant)  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package:** TO-92  

### **Descriptions:**  
The KA431LZ is a three-terminal adjustable shunt regulator with thermal stability over the operating temperature range. It is commonly used in power supplies, battery chargers, and voltage monitoring circuits.  

### **Features:**  
- **Adjustable Output Voltage** (from Vref to 36V)  
- **Low Dynamic Output Impedance** (0.2Ω typical)  
- **Sink Current Capability** (1mA to 100mA)  
- **Equivalent to TL431** (industry-standard alternative)  
- **Low Temperature Drift**  

This device is widely used in feedback control circuits for precise voltage regulation.

Partnumber Manufacturer Quantity Availability
KA431LZ FAIRCHILD 948 In Stock

Description and Introduction

Programmable Shunt Regulator The KA431LZ is a precision programmable shunt regulator manufactured by Fairchild Semiconductor (now part of ON Semiconductor).  

### **Specifications:**  
- **Output Voltage Range:** 2.5V to 36V  
- **Reference Voltage (Vref):** 2.495V (Typical)  
- **Operating Cathode Current (IK):** 1mA to 100mA  
- **Sink Current Capability:** Up to 100mA  
- **Tolerance of Reference Voltage:** ±1% (A Grade), ±2% (Standard)  
- **Low Dynamic Output Impedance:** 0.2Ω (Typical)  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package Type:** TO-92  

### **Descriptions:**  
The KA431LZ is a three-terminal adjustable shunt regulator with thermal stability over the full operating temperature range. It is commonly used in switching power supplies, voltage references, and error amplifiers.  

### **Features:**  
- Adjustable output voltage with two external resistors  
- Low output noise  
- Fast turn-on response  
- Low temperature drift  
- Equivalent to TL431  

This device is widely used in power management circuits for precise voltage regulation.

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